Update QStackedWidget



  • I have a QStackedWidget with 4 pages and I'm using a QComboBox to switch page. None of the pages have more than 3 child widgets. I set up this widget in designer and add child widgets in my constructor.

    Sometimes, when I switch page the stacked widget doesn't redraw. Specifically,

    1. I select the page using the combo.
    2. The combo does not change text, the page does not change.
    3. If you move the mouse over the combo/stack, the widgets update to the correct state.

    I set up an intermediate slot with an update(), but it doen't make any difference:

    @
    ...
    connect(pageChooseCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(setPage(int)));
    ...

    void ThisClass::setPage(int page)
    {
    stack->setCurrentIndex(page);
    stack->update();
    }
    @

    Does anyone have any suggestions about how to update the widgets ?

    Platform: Qt 5.1.0 on Mac 10.8.



  • Hi, seems the problem is

    bq. select the page using the combo. The combo does not change text

    Which means QCombo doesn't work correctly.

    Can you reproduce this problem without QStackedWidget?



  • I added a QLabel to my layout and then changed the setPage slot as follows:

    @
    void ThisClass::setPage(int page)
    {
    /*
    stack->setCurrentIndex(page);
    stack->update();
    */

    debugLabel->setText(QString::number(page));
    }
    @

    I observed the same problem.

    The slot is the only signal connection to/from the combo. So I guess QComboBox has a problem.


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